or metal catalysts. The synthetic strategy involves anodic cleavage of benzylic C−H to form a carbocation intermediate, which is then trapped with an amine nucleophile leading to C−N bond formation. Key to the success is to include HFIP as a co‐solvent to modulate the oxidation potentials of the alkylbenzene substrate and the aminated product to avoid overoxidation of the latter.
C-H / N-H交叉偶联是合成各种
胺类的理想策略,但由于需要牺牲性
化学氧化剂以及难以控制区域和
化学选择性,因此仍然具有挑战性。在本文中,我们报道了一种位点选择性的电
化学胺化反应,该反应可通过H 2释放将苄基CH键转换为CN键,而无需外部氧化剂或
金属催化剂。合成策略涉及将苄基CH进行阳极裂解以形成碳正离子中间体,然后将其捕获在胺亲核试剂中,导致CN键的形成。成功的关键是将HFIP用作助溶剂,以调节烷基苯底物和胺化产物的氧化电位,以避免后者的过度氧化。